Reasons

When I was 12-ish, my middle school best friend got a letter from her mother stating that she had a "bee in her bonnet". Confused as to exactly what her mother could have meant, we found three different colloquial meanings for that phrase:1. wound-up about something, angry about something, having some sort of disturbance rolling around in your head2. having a special someone in your life3. being knocked up

The first two meanings, I have in spades. It took way too long, but I finally took care of the third.